Episode 4×22 “Think Fast”

DAVID RAMSEY GUEST STARS

When DeVoe assaults an A.R.G.U.S. facility to complete his Enlightenment Machine, Barry (Grant Gustin) realizes the only way he can stop him is if he allows Cisco (Carlos Valdes) and Caitlin (Danielle Panabaker) to accompany him into the facility.

Still shaken by Ralph’s death, Barry isn’t sure he wants to risk any more of his friends’ lives and considers taking on DeVoe solo.

Episode 4×13 “True Colors”

AMUNET MAKES A BIG PLAY

After hearing that Amunet (guest star Katee Sackhoff) has struck a deal to buy all of the metahumans in Iron Heights, Barry (Grant Gustin) must decide if he should expose his powers in order to save his cellmates.

After a visit from an old friend, Ralph (guest star Hartley Sawyer) is reminded of his shady past and wonders if he’s really a changed man.

All of the superheroes band together with help from their super friends like Citizen Cold (guest star Wentworth Miller), The Ray (guest star Russell Tovey), Felicity Smoak (guest star Emily Bett Rickards), Iris West and Alex Danvers (guest star Chyler Leigh) to take on their most formidable villains yet.

Episode 4×06 “When Harry Met Harry”

ONE HARRY, TWO HARRYS, THREE HARRYS, FOUR

When collectors of Native American artifacts are attacked by a meta named Mina Chayton (guest star Chelsea Kurtz) who can bring inanimate objects to life, Barry (Grant Gustin) turns to a surprising ally for help.

Determined to crack the identity of The Thinker, Harry (Tom Cavanagh) enlists Cisco’s (Carlos Valdes) help to summon the ultimate think tank: “The Council of Wells’,” a roundtable of the brightest Harrison Wells’ from various Earths.

Episode 4×05 “Girls Night Out”

Having received an ominous threat from her old boss, Amunet (guest star Katee Sackhoff), Caitlin (Danielle Panabaker) fears that her past time as Killer Frost may be back to haunt her.

Felicity (guest star Emily Bett Rickards) comes to Central City to help the girls celebrate Iris’s (Candice Patton) bachelorette party, while Cisco (Carlos Valdes), Joe (Jesse L. Martin) and the guys take Barry out for a night on the town.

The Flash — “Luck Be a Lady” Pictured (L-R): Grant Gustin as Barry Allen and Candice Patton as Iris West — Photo: Robert Falconer/The CW

Episode 4×03 “Luck be a Lady”

DC COMICS’ CHARACTER HAZARD COMES TO PLAY IN CENTRAL CITY

Barry (Grant Gustin) and the team are hit by a string of bad luck and realize it is the handiwork of a new meta, Becky (guest star Sugar-Lyn Beard) nicknamed Hazard, who has the ability to give others bad luck, while cashing in the benefits for herself.

Episode 4×02 “Mixed Signals”

BARRY AND IRIS GO TO COUPLES THERAPY

Barry (Grant Gustin) has his hands full when he takes on a dangerous meta (guest star Dominic Burgess) who can control technology, while also confronting an obstacle in his personal life: the ramifications of abandoning Iris (Candice Patton) for six months to balance the Speed Force.

Meanwhile, Gypsy (guest star Jessica Camacho) breaches in for a hot date with Cisco (Carlos Valdes), but she gets annoyed when his work keeps them apart.

About The Flash

Barry Allen (Grant Gustin) lived a normal life as a perpetually tardy C.S.I. in the Central City Police Department. Barry’s life changed forever when the S.T.A.R. Labs Particle Accelerator exploded, creating a dark-matter lightning storm that struck Barry, bestowing him with super-speed and making him the fastest man alive — The Flash. But when Barry used his extraordinary abilities to travel back in time and save his mother’s life, he inadvertently created an alternate timeline known as Flashpoint; a phenomenon that gave birth to the villainous speed god known as Savitar, and changed the lives of Caitlin Snow (Danielle Panabaker) and Wally West (Keiyan Lonsdale) forever. With the help of his adoptive father, Joe West (Jesse L. Martin), his lifelong best friend and love interest Iris West (Candice Patton), and his friends at S.T.A.R. Labs — Cisco Ramon (Carlos Valdes), C.S.I Julian Albert (Tom Felton), and an Earth-19 novelist named H.R. Wells (Tom Cavanaugh) — Barry continues to protect the people of Central City from the meta-humans that threaten it.